president biden. win by ryan could create dynamic of energy challenger squaring off against tired incumbent. vice president biden has been holed up in delaware hotel room doing debate preparation. reading the book co-authored b paul ryan called young gun and practicing attack line that the president didn't use last week. more space for a vice-presidential candidate to engage in that kind of attack given that the approval ratings don't matter as much. this is the white house. >> in the mean time mitt romney shted his fk daughter ternatnal affas durin the spch athe virgia military institeomne asted th prident sang theisk of colict in e mile et has grown under president obama leadership. >> time to change course in the middle east. that course should be organized around the bed rock principals. america must have confidence in our cause. clarity in our purpose and resolve in our minds. >> romney pledged to tighten sanctions on iran to force it to give up the nuclear ambitio ambition. he also promised to i